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ASME B31.3-2016 Table 323.3.1 Impact Testing Requirements for Metals Column A Column B Materials Tested by the Manufacturer[Note(1)] Materials Not Tested by the Manufacturer or Test or Those in Table 323.2.2 Requiring Impact Tests Those Tested But Heat Treated During or After Characteristics Only on Welds Fabrication Number of A-1 The greater of the number required by B-1 The number required by the applicable tests (a) the material specification or specification listed in para. 323.3.2 [Note (2)] (b) the applicable specification listed in para. 323.3.2 [Note (2)] c ° Location and orientation 2 As required b the applicable specification listed in para. 323.3.2. q Y p p� p of specimens Tests by A-3 The manufacturer B-3 The fabricator or erector Test piece for prepara- 4 One required for each welding procedure, for each type of filler metal (i.e.,AWS E-XXXX classification), tion of impact and for each flux to be used.Test pieces shall be subjected to essentially the same heat treatment specimens (including time at temperature or temperatures and cooling rate) as the erected piping will have received. Number of test pieces A-5 B-5 [Note (3)] (a) One piece, thickness T, for each range of (a) One piece from each lot of material in each a material thickness from T12 to T+ 6 mm specification and grade including heat treat- (/4 in.) ment[Note (4)] unless c (b) Unless required by the engineering design, (b) Materials are qualified by the fabricator or pieces need not be made from each lot, nor erector as specified in items B-1 and 2 from material for each job, provided that above, in which case the requirements of welds have been tested as required by item A-5 apply Section 4 above, for the same type and grade of material (or for the same P-Number and Group Number in BPV Code, Section IX), and of the same thickness range, and that records of the tests are made available Location and orientation 6 of specimens (a) Weld metal: across the weld,with notch in the weld metal; notch axis shall be normal to material surface,with one face of specimen 5 1.5 mm C/16 in.) from the material surface. (b) Heat affected zone (HAZ): across the weld and long enough to locate notch in the HAZ after etch- ing; notch axis shall be approximately normal to material surface and shall include as much as possible of the HAZ in the fracture. Tests by 7 The fabricator or erector NOTES: (1) A certified report of impact tests performed (after being appropriately heat treated as required by Table 323.2.2, item B-3) by the man- ufacturer shall be obtained as evidence that the material (including any welds used in its manufacture) meets the requirements of this Code and that (a) the tests were conducted on specimens representative of the material delivered to and used by the fabricator or erector, or (b) the tests were conducted on specimens removed from test pieces of the material which received heat treatment separately in the same manner as the material (including heat treatment by the manufacturer) so as to be representative of the finished piping (2) If welding is used in manufacture,fabrication, or erection,tests of the HAZ will suffice for the tests of the base material. (3) The test piece shall be large enough to permit preparing three specimens from the weld metal and three from the HAZ (if required) in accordance with para. 323.3. If this is not possible, preparation of additional test pieces is required. (4) For purposes of this requirement, "lot" means the quantity of material described under the"Number of tests" provision of the specifica- tion applicable to the product term (i.e., plate, pipe, etc.) listed in para. 323.3.2.